Isaac w



(No Model.

I. W. RUSHMORE;

APPARATUS FOR HEATING BUILDINGS.

No. 361,784. Patented Apr. 26, 1887.

U ITED STATES PATENT OFFICE;

ISAAC W. RUSHMORE, OF PLAINFIELD, NEWV JERSEY.

APPARATUS FOR HEATING B UILDINGS.

SPECIFICATION forming part of Letters Patent No. 361,784, dated April26, 1887. Application filed May Ti, 1886. Serial No. 202,384. (Nomodel.)

To all whom it may concern:

Be it known that I, ISAAC W. RUsHMoRE, of Plainfield, in the county ofUnion and State of New Jersey, have invented an Improvement in Apparatusfor Heating Buildings, of which the following is a specification.

Furnaces have been constructed with a coil or jacketthrough which wateris caused to circulate by the action of the heat of the furnace,and'there have been radiating-coils within an air-chamber for heatingthe atmosphere, and such atmosphere has passed into the apartments orrooms through tubes or flues. In practice it is found that with heatershaving an air-chamber and lateral air-pipes, whether a furnace alone isused or whether hot water or steam is used in such air chamber, in

cold weather the air in the lateral air-pipes .the tubes or flues thatpass from the furnacechamber to the respective rooms, and at the sametime to increase the radiating-surface of the hot-air pipes.

In the drawings, Figure 1 ma vertical section showing portions of thebuilding and of the furnace and of the hot-air pipes or fines with myimprovements applied thereto, and Fig. 2 is a cross-section of one ofthe hot-air flues.

The furnace A is of any suitable character, and within the same is bypreference a coil of pipe, B; but a waterjacket might be used in placeof a coil of pipe.

O is a coil of pipes through which the hot water is caused to circulate,and this coil is within the air-chamber H, to which the atmosphere isadmitted through an opening, I, as usual, and from this air-chamber Hthe hotair pipes or fluesK pass to the different rooms or portions ofthe building to be heated.

As my improvements are available with any arrangement of hot-air pipesor fines it is unnecessary to describe these parts any more fully.

My present improvements are available with hot-air fines that pass offin any direction; but

the utility is more apparent in the fines that have but a slightinclination.

From the heating coils G, I pass along through the hot-air flues K thecirculatingpipes L. These circulating-pipes are double in each flue andopen into each other at the up per and outer ends, 4, and at the hot-airchamber the circulating-pipes L branch out from the coil-pipes O atdifferent elevations, so that the hot water will pass off near the upperparts of the coil 0 through the circulating-pipes Land back again to thelower portions of the coilpipes 0, thereby insuring a rapidity ofcirculation of the hot water within the air pipes or fines K, so as towarm such air and promote the rapidity of circulation and cause suchwarm air to pass along the pipes, which are but slightly inclined, withgreater rapidity than otherwise.

In all hot-watcr-circulating apparatus it is necessary to maintain thecontinuity of the column of water and to prevent the accumulation ofsteam or gases in the higher portions of the coils. YVith my presentimprovement any such accumulation of air or gases in thecirculating-pipes L would effectually prevent the apparatus operatingreliably. To avoid this difficulty I provide branch pipes 1?, ex

tending above the upper and outer ends, 4, of

the circulating-pipes L, and to these branch pipes P cocks may beapplied for allowing the air to be blown offlperiodically; but as thereis usually a water-cistern in an elevated position within thedwelling-house I prefer to make use of said cistern for maintaining thenecessary water-supply to the heating apparatus, and for allowing theescape of air and gases, and for preventing the accumulation ofsteam-pressure. With this objectin view, the pipes P are continuedupwardly until they reach the reservoir Q, and it is usually preferableto unite these branch pipes 1? into one pipe where it passes into thereservoir; and by, placing these pipes at an upward inclination any airor steam will pass off through the water of the reservoir.

It is often difficult to obtain the necessary supply of hot water in allparts of a building. I therefore make use of the pipes P for conveyinghot water to any desired portion of the s semst rooms or building; butin order to be able to draw such hot water it is preferable to providea'cock, S, in the pipe Pabove the cock T, from which the hot water isdrawn, so that the water from the reservoir Q may pass down into thefurnace-pipes through some other portions of the branch pipes to supplythe place of the hot water that is drawn from one of the cocks T. It isto be understood that the cock S,

should be opened after the cook T has been closed. a

In some rooms in distant portions of dwelling-houses-such, for instance,as'bath-rooms or water-closets--difficulty arises in obtaining thenecessary heat in cold weather. added to my aforesaid apparatus theradiating- I coil Mwithin one of the rooms, the same being acontinuation from one of the circulatingpipes L, passing through one ofthe heating- 7 flues, in order that the'hot water may circulate I have iand steam and for supplying Water, substantially as set forth.

2. The combination, with the furnace and the air-chamber around thesame, of the hotair flues passing off from such chamber, andhot-water-circulating pipes within such flues, a reservoir for supplyingwater, and a branch pipe to such reservoir from the upper and outer endsof the circulating-pipes, substantially as set forth.

3. The combination, with the furnace and air-chamber and the hot-airflues passing off laterally, of circulating hot-water pipes withinthe-hot-air flues, a coil within the furnace for heating the water, areservoir, and a connec tion between the upper and outer parts of thecirculating-pipes and the reservoir, substantially as set forth.

4. The furnace-coil for heating water, theair-chamber, and the hot-airflues passing off from the air-chamber, in combination with thehotwater-circulating pipes within the hot -air fines and connected tothe coil, and

radiator-pipes connected to the outer ends of ISA AC W. RUSHM ORE.

Witnesses:

M. FRAsER BoLEN, RoBT. RUSHMORE.

